<ol xml:space="preserve">
<li>Choose the 
<a href="../../doc/Select_en.html#mode">selection mode</a> in the options tool
bar.</li>
<li>Click the start point of the intersection line.</li>
<li>Click the end point of the intersection line.</li>
<li>All intersected entities are selected or deselected depending on
the selection mode.</li>
</ol>
